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It is mandatory that for every table in the LDB hierarchy there should exist one GET statement in the report.
False. It is not essential.
What is an index? An index is a structure that helps to place desired records of a relation quickly, without probing all records.
What are stored and derived attributes? Stored attributes: The attributes keeps in a data base are known as stored attributes. Derived attributes: The attributes that are de
Security And Integrity After Reading the concepts of database recovery in the last section, let us now deal with a vital concept that helps in minimizing consistency errors in
Which database object does not physically exist? A view database object does not physically exist.
Why were functional methods fashionable in early days? These are inspired directly by computer architecture and thus popular among computer scientist in early days. The divisio
Explain weak and strong entity type ? Weak and Strong entity type: An entity set which does not have a primary key is referred to as a weak entity set. The existence of a wea
Hi I have got an assignment for making an er diagram for market management software can any budy help me?
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To do the division operation R1 ÷ R2, R2 should be a correct subset of R1. In the following example R1 have attributes A and B and R2 have only attribute B so R2 is a correct subse
i need help with creating database system for a library
Thank you, for your expert advice. You have provided very useful answer.
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